The effects of the diameter of high-voltage electrode wire, the voltage of discharge, the structure of reactor and the total flow rate of H2-O2 feed on the direct synthesis of hydrogen peroxide in ambient conditions b...The effects of the diameter of high-voltage electrode wire, the voltage of discharge, the structure of reactor and the total flow rate of H2-O2 feed on the direct synthesis of hydrogen peroxide in ambient conditions by the dielectric barrier discharge （DBD） plasma method were studied.The results showed that the diameter of high-voltage electrode wire, the voltage of discharge and the structure of reactor had pronounced effects on H2O2 synthesis. By using a self-designed DBD plasma reactor （recycled flowing electrolyte as grounding electrode）, H2O2 was synthesized with 32.51% yield at room temperature and atmospheric pressure from H2-O2 feed, which was several times higher than that reported in literature.展开更多
The effect of emulsification pretreatment on the acidic protease catalyzed hydrolysis of corn glu- ten reed(CGM)has been studied.Results show that under the hydrolysis conditions of acidic protease/sub- strate ratio o...The effect of emulsification pretreatment on the acidic protease catalyzed hydrolysis of corn glu- ten reed(CGM)has been studied.Results show that under the hydrolysis conditions of acidic protease/sub- strate ratio of 10%(g/g),CGM substrate concentration of 80 g/L and reaction temperature of 55℃,the di- rect hydrolysis of CGM by the acidic protease for 24 h gave a protein extraction rate of 62.79 % and a hydrol- ysate containing 45% oligo-peptides of molecular weight below 1000 u .By subjecting CGM under high- speed emulsification pretreatment at 7 000 r/min for 1 h,the hydrolysis of the resulted CGM fine particle un- der the same conditions gave a proptein extraction rate of 88.47% and a hydrolysate containing 78% oligo- peptides of molecular weight below 1000 u.The composition analysis of the hydrolysate on HPLC indicates that the emulsification pretreatment also increased the content of branch-chain amino acids in hydrolysate. That is to say,the emulsification pretreatment is useful for the preparation of high F ration oligo-peptides from CGM.展开更多
文摘The effects of the diameter of high-voltage electrode wire, the voltage of discharge, the structure of reactor and the total flow rate of H2-O2 feed on the direct synthesis of hydrogen peroxide in ambient conditions by the dielectric barrier discharge （DBD） plasma method were studied.The results showed that the diameter of high-voltage electrode wire, the voltage of discharge and the structure of reactor had pronounced effects on H2O2 synthesis. By using a self-designed DBD plasma reactor （recycled flowing electrolyte as grounding electrode）, H2O2 was synthesized with 32.51% yield at room temperature and atmospheric pressure from H2-O2 feed, which was several times higher than that reported in literature.
文摘The effect of emulsification pretreatment on the acidic protease catalyzed hydrolysis of corn glu- ten reed(CGM)has been studied.Results show that under the hydrolysis conditions of acidic protease/sub- strate ratio of 10%(g/g),CGM substrate concentration of 80 g/L and reaction temperature of 55℃,the di- rect hydrolysis of CGM by the acidic protease for 24 h gave a protein extraction rate of 62.79 % and a hydrol- ysate containing 45% oligo-peptides of molecular weight below 1000 u .By subjecting CGM under high- speed emulsification pretreatment at 7 000 r/min for 1 h,the hydrolysis of the resulted CGM fine particle un- der the same conditions gave a proptein extraction rate of 88.47% and a hydrolysate containing 78% oligo- peptides of molecular weight below 1000 u.The composition analysis of the hydrolysate on HPLC indicates that the emulsification pretreatment also increased the content of branch-chain amino acids in hydrolysate. That is to say,the emulsification pretreatment is useful for the preparation of high F ration oligo-peptides from CGM.
